Pardo, Rosa. “On the Existence of a Priori Bounds for Positive Solutions of Elliptic Problems, II”. Revista Integración, temas de matemáticas 37, no. 1 (February 19, 2019): 113–148. Accessed August 24, 2024. https://revistas.uis.edu.co/index.php/revistaintegracion/article/view/9366.